1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
|
use std::convert::TryInto;
use err_derive::Error;
use hyper::header::HeaderValue;
use hyper::{HeaderMap, StatusCode};
use garage_util::error::Error as GarageError;
use crate::s3_xml;
/// Errors of this crate
#[derive(Debug, Error)]
pub enum Error {
// Category: internal error
/// Error related to deeper parts of Garage
#[error(display = "Internal error: {}", _0)]
InternalError(#[error(source)] GarageError),
/// Error related to Hyper
#[error(display = "Internal error (Hyper error): {}", _0)]
Hyper(#[error(source)] hyper::Error),
/// Error related to HTTP
#[error(display = "Internal error (HTTP error): {}", _0)]
Http(#[error(source)] http::Error),
// Category: cannot process
/// No proper api key was used, or the signature was invalid
#[error(display = "Forbidden: {}", _0)]
Forbidden(String),
/// Authorization Header Malformed
#[error(display = "Authorization header malformed, expected scope: {}", _0)]
AuthorizationHeaderMalformed(String),
/// The object requested don't exists
#[error(display = "Not found")]
NotFound,
// Category: bad request
/// The request contained an invalid UTF-8 sequence in its path or in other parameters
#[error(display = "Invalid UTF-8: {}", _0)]
InvalidUtf8Str(#[error(source)] std::str::Utf8Error),
/// The request used an invalid path
#[error(display = "Invalid UTF-8: {}", _0)]
InvalidUtf8String(#[error(source)] std::string::FromUtf8Error),
/// Some base64 encoded data was badly encoded
#[error(display = "Invalid base64: {}", _0)]
InvalidBase64(#[error(source)] base64::DecodeError),
/// The client sent invalid XML data
#[error(display = "Invalid XML: {}", _0)]
InvalidXml(String),
/// The client sent a header with invalid value
#[error(display = "Invalid header value: {}", _0)]
InvalidHeader(#[error(source)] hyper::header::ToStrError),
/// The client sent a range header with invalid value
#[error(display = "Invalid HTTP range: {:?}", _0)]
InvalidRange(#[error(from)] (http_range::HttpRangeParseError, u64)),
/// The client sent an invalid request
#[error(display = "Bad request: {}", _0)]
BadRequest(String),
/// The client sent a request for an action not supported by garage
#[error(display = "Unimplemented action: {}", _0)]
NotImplemented(String),
}
impl From<roxmltree::Error> for Error {
fn from(err: roxmltree::Error) -> Self {
Self::InvalidXml(format!("{}", err))
}
}
impl From<quick_xml::de::DeError> for Error {
fn from(err: quick_xml::de::DeError) -> Self {
Self::InvalidXml(format!("{}", err))
}
}
impl Error {
/// Get the HTTP status code that best represents the meaning of the error for the client
pub fn http_status_code(&self) -> StatusCode {
match self {
Error::NotFound => StatusCode::NOT_FOUND,
Error::Forbidden(_) => StatusCode::FORBIDDEN,
Error::InternalError(
GarageError::Timeout
| GarageError::RemoteError(_)
| GarageError::Quorum(_, _, _, _),
) => StatusCode::SERVICE_UNAVAILABLE,
Error::InternalError(_) | Error::Hyper(_) | Error::Http(_) => {
StatusCode::INTERNAL_SERVER_ERROR
}
Error::InvalidRange(_) => StatusCode::RANGE_NOT_SATISFIABLE,
Error::NotImplemented(_) => StatusCode::NOT_IMPLEMENTED,
_ => StatusCode::BAD_REQUEST,
}
}
pub fn aws_code(&self) -> &'static str {
match self {
Error::NotFound => "NoSuchKey",
Error::Forbidden(_) => "AccessDenied",
Error::AuthorizationHeaderMalformed(_) => "AuthorizationHeaderMalformed",
Error::InternalError(
GarageError::Timeout
| GarageError::RemoteError(_)
| GarageError::Quorum(_, _, _, _),
) => "ServiceUnavailable",
Error::InternalError(_) | Error::Hyper(_) | Error::Http(_) => "InternalError",
_ => "InvalidRequest",
}
}
pub fn aws_xml(&self, garage_region: &str, path: &str) -> String {
let error = s3_xml::Error {
code: s3_xml::Value(self.aws_code().to_string()),
message: s3_xml::Value(format!("{}", self)),
resource: Some(s3_xml::Value(path.to_string())),
region: Some(s3_xml::Value(garage_region.to_string())),
};
s3_xml::to_xml_with_header(&error).unwrap_or_else(|_| {
r#"
<?xml version="1.0" encoding="UTF-8"?>
<Error>
<Code>InternalError</Code>
<Message>XML encoding of error failed</Message>
</Error>
"#
.into()
})
}
pub fn add_headers(&self, header_map: &mut HeaderMap<HeaderValue>) {
use hyper::header;
#[allow(clippy::single_match)]
match self {
Error::InvalidRange((_, len)) => {
header_map.append(
header::CONTENT_RANGE,
format!("bytes */{}", len)
.try_into()
.expect("header value only contain ascii"),
);
}
_ => (),
}
}
}
/// Trait to map error to the Bad Request error code
pub trait OkOrBadRequest {
type S;
fn ok_or_bad_request<M: AsRef<str>>(self, reason: M) -> Result<Self::S, Error>;
}
impl<T, E> OkOrBadRequest for Result<T, E>
where
E: std::fmt::Display,
{
type S = T;
fn ok_or_bad_request<M: AsRef<str>>(self, reason: M) -> Result<T, Error> {
match self {
Ok(x) => Ok(x),
Err(e) => Err(Error::BadRequest(format!(
"{}: {}",
reason.as_ref(),
e.to_string()
))),
}
}
}
impl<T> OkOrBadRequest for Option<T> {
type S = T;
fn ok_or_bad_request<M: AsRef<str>>(self, reason: M) -> Result<T, Error> {
match self {
Some(x) => Ok(x),
None => Err(Error::BadRequest(reason.as_ref().to_string())),
}
}
}
/// Trait to map an error to an Internal Error code
pub trait OkOrInternalError {
type S;
fn ok_or_internal_error<M: AsRef<str>>(self, reason: M) -> Result<Self::S, Error>;
}
impl<T, E> OkOrInternalError for Result<T, E>
where
E: std::fmt::Display,
{
type S = T;
fn ok_or_internal_error<M: AsRef<str>>(self, reason: M) -> Result<T, Error> {
match self {
Ok(x) => Ok(x),
Err(e) => Err(Error::InternalError(GarageError::Message(format!(
"{}: {}",
reason.as_ref(),
e
)))),
}
}
}
impl<T> OkOrInternalError for Option<T> {
type S = T;
fn ok_or_internal_error<M: AsRef<str>>(self, reason: M) -> Result<T, Error> {
match self {
Some(x) => Ok(x),
None => Err(Error::InternalError(GarageError::Message(
reason.as_ref().to_string(),
))),
}
}
}
|
